phrosty: A difference imaging pipeline for Roman

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dc.contributor.authorAldoroty, Lauren
dc.contributor.authorHu, Lei
dc.contributor.authorKnop, Rob
dc.contributor.authorMeldorf, Cole
dc.contributor.authorScolnic, Daniel
dc.contributor.authorLiu, Shu
dc.contributor.authorWood-Vasey, W. Michael
dc.contributor.authorManos, Marcus
dc.contributor.authorErlandson, Lucas
dc.contributor.authorHounsell, Rebekah
dc.contributor.authorRose, Ben
dc.contributor.authorSako, Masao
dc.contributor.authorTroxel, Michael
dc.contributor.authorThe Roman Supernova Cosmology Project Infrastructure Team
dc.date.accessioned2025-10-29T19:14:43Z
dc.date.issued2025-09-23
dc.description.abstractNASA's Nancy Grace Roman Space Telescope (Roman) will provide an opportunity to study dark energy with unprecedented precision using several techniques, including measurements of Type Ia Supernovae (SNe Ia). Here, we present phrosty (PHotometry for ROman with SFFT for tYpe Ia supernovae): a difference imaging pipeline for measuring the brightness of transient point sources in the sky, primarily SNe Ia, using Roman data. phrosty is written in Python. We implement a GPU-accelerated version of the Saccadic Fast Fourier Transform (SFFT) method for difference imaging.
dc.description.sponsorshipFunding for the Roman Supernova Project Infrastructure Team has been provided by NASA under contract to 80NSSC24M0023. This work is also supported by NASA under award number 80GSFC24M0006. M. T. was funded by NASA under JPL Contract Task 70-711320, “Maximizing Science Exploitation of Simulated Cosmological Survey Data Across Surveys’ ’.This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy using award number HEP-ERCAP32751. This work was completed in part at the NASA Open Hackathon, part of the Open Hackathons program. The authors would like to acknowledge OpenACC-Standard.org for their support. The authors acknowledge and thank NVIDIA for their contributions.
dc.description.urihttp://arxiv.org/abs/2509.18544
dc.format.extent8 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifierdoi:10.13016/m28rxu-dtt5
dc.identifier.urihttps://doi.org/10.48550/arXiv.2509.18544
dc.identifier.urihttp://hdl.handle.net/11603/40657
dc.language.isoen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.subjectAstrophysics - Instrumentation and Methods for Astrophysics
dc.titlephrosty: A difference imaging pipeline for Roman
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-0476-4206

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